Apple Java Bug Report
  
    04 June 2008 
    
  
  Problem ID: 5903500
* SUMMARY
Java Web Start applications are not receiving file arguments for their associated file types. When an JWS application is installed to the desktop with mime-type and extension associations, the JWS Client correctly invokes the application when attempting to open a related file; it fails, however, to include the file path as a parameter to the JWS application.
 * STEPS TO REPRODUCE
1. Install a JWS application to the desktop with a file association in the JNLP file (ex. .xyz).
2. Double-click a .xyz file in Finder. 
* RESULTS
Application launches without any command-line parameters. Expect the subject file to be included as application main() arguments "-open /path/to/file".